This game is a cross between Beirut and Beer Die, and is a 1-on-1 game. You need 2 ping pong balls, 2 beirut cups, 2 water cups, and a lot of beer (or your drink of choice).

Players shoot (odds/evens) for serve (best of 3).
Fill cups with beer. Each player may move this cup anywhere on their side of the table, as long as it is prior to the other player taking their first shot.